Removing ECU-B Fuse
WARNING: This page is about a different car, the 2000 Lexus SC 400, 2000 Lexus SC 300, 2000 Lexus LS 400, 2000 Lexus GS 400, and 2000 Lexus GS 300. However, it is still accessible from the selected car via links, so may be relevant.
Turn ignition off. Interrupt power supply to ECM memory by removing ECU-B fuse in engine compartment fuse/relay block. Wait at least 10 seconds. Install fuse. To ensure DTCs have cleared, attempt to retrieve DTCs. If normal DTC is displayed, DTCs have cleared.